Western Australia · Attraction
Little Salmon Bay Snorkel Trail
Guided underwater reef discovery
schedule 1 min read / Updated Jun 2026
Little Salmon Bay on the southern side of Rottnest Island is home to one of Australia's most accessible and rewarding guided snorkel trails. A series of underwater marker buoys leads snorkellers through seagrass meadows, limestone formations and rocky reefs within the protected Parker Point Marine Sanctuary Zone. The trail is free, self-guided and suitable for swimmers of most abilities.
The trail loops around the bay for approximately 700 metres, with interpretive plaques anchored to the seabed beneath each buoy. These plaques identify and explain the marine life and coral species surrounding them, turning a swim into an educational experience. Look for scalyfins, wrasse, bream and the occasional western rock lobster hiding among the seagrass.
The bay sits within the Parker Point Marine Sanctuary, one of several dedicated sanctuary zones around Rottnest Island where fishing and collection of any plant or animal material is strictly prohibited. This protection has allowed coral and fish populations to recover and flourish over recent decades.
Little Salmon Bay is reached by a 15-minute bike ride south from the main settlement or via the Island Explorer bus. Snorkel gear can be hired at Thomson Bay. The bay faces south and is most sheltered from afternoon sea breezes, making mornings the calmest time to visit.
Scenic views